^^^ From what little I tested....if I can game with that kind of silence and Gpu Temps in the mid 40's that in itself made it totally worth it..

I turned the Pump right down to the lowest it will go...so will keep an eye on it.
I would think provided my temps are good...the bubbles to accumulate too much I sould be okay until I drain and reconfigure (I'll get rid of the 90's going in / out of the Res) ?

Coming from my Rad....(I can re-orientate the Rad so a straight run to the Res (sort of)....then split to 2 outgoing tubes to both Inlets of the Res....right? I could increase the size of the tube from the Y connector to the Inlet Ports on the res if need be as well.....

Coming from my Rad....(I can re-orientate the Rad so a straight run to the Res (sort of)....then split to 2 outgoing tubes to both Inlets of the Res....right? I could increase the size of the tube from the Y connector to the Inlet Ports on the res if need be as well.....

your making a manifold for inlet for D5 suction is not matching 1 inlet

with above your still same port size with 3/4 hose is increasing area to support D5 suction

^^^ Okay I see where your going....there wouldnt be much room between the Rad and the Res intakes for all that..I would have to come off of a Rotary 90 (2x 45) from bottom of Rad....then to 2 x inlets on Res....would it be beneficial even just to go from the 90 from Rad (remember I'll end for end the Rad from its current position to allow for more length to Res), then to the Y Connector...then 2 x 3/4" OD 1/2" ID to both inlets?
Essentially exactly as your showing minus the 3/4" OD 1/2" ID length before the "Y Connector".... I could probably get 2 lengths each around 5 - 6" in length 3/4" OD 1/2" ID to res....this would allow me to have the "manifold with Y" off of lower outlet of Rad....then 2 decent lengths of 3/4" OD to res......this make sense..? Guess it would be an improvement and reduce cavitation?

And as it stands I would still have to have one of the two Res Inlets with a 45 (maybe a 30) on it....no way around that...